Note: The correct answer under (a) during the exam order answers will be different.
Q.1. The working cycle of a four-stroke engine is:
a- Induction, compression, power, exhaust.
b- Induction, power, compression, exhaust.
c- Compression induction, power, exhaust.
d- Induction, compression, expansion, power.
Q.2. Vapour locking is caused by:
a- Vaporizing of fuel prior to the engine.
b- The formation of water vapour in a fuel system.
c- Vaporizing of fuel in the nozzles.
d- the inability of fuel to vaporize in the nozzles.
Q.3. Which statement is correct about the flow in a divergent jet engine inlet?
I. The speed increases in flow direction.
II. The total pressure increases in flow direction.
a- I is incorrect, II is incorrect.
b- I is incorrect, II is correct.
c- I is correct, II is incorrect.
d- I is correct, II is correct.
Q.4. In a jet engine the creep phenomenon is the most severe in the:
a- Turbine rotors.
b- Compressor blades.
c- Combustor liner.
d- Combustor casing.
Q.5. Which statement is correct?
I. The freezing point for Jet A is at a lower temperature than that for Jet B.
II. The flash point for Jet A is at about the same temperature as that for Jet B.
a- I is incorrect, II is incorrect.
b- I is correct, II is incorrect.
c- I is incorrect, II is correct.
d- I is correct, II is correct.